Polar Loop 2 vs. Withings Go vs. Garmin Forerunner 235 vs. Fitbit Charge vs. Amazfit GTR

 
Loop 2
Go
Forerunner 235
Charge
GTR
 PolarLoop 2Remove Buy NowWithingsGoRemove Buy NowGarminForerunner 235Remove Buy NowFitbitChargeRemove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$120$80$299.99$130$199
Release20152016201720142019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration8 days (without notifications)8 months9 days7-10 days24 days
Rechargeable

Compatibility

Androidn/a
iOSn/a
Windows Phonen/an/aNA
Macn/an/a
Windowsn/an/a

Connectivity

Bluetoothn/a
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a215 x 180NA454 x 454
Sizen/an/a1.23 inchesNA1.39 inches
Touchn/aNA
TypeLEDE-InkMIPOLEDAMOLED

Functions

Audio Speaker
Clock
Phonen/a
Vibrationn/a
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM5 ATM5 ATM1 ATM5 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/aNABuild-in
Appsn/a
Music

All Wearables